taxiing - if you have any problems (and yes, they do talk far too fast!) ask for "progressive taxi". They will keep an eye on you, and as you get to each intersection they will say, "turn left" "turn right" etc. Nice.
ctaf - this is a slightly different concept, and sometimes you get someone on the ground. Its a bit like a more colloquial version of Air-Ground radio that is used at some airfields in the UK. Just be aware that if someone on the ground answers and tells you the weather, it may or may not be correct!!! Sometimes its the cafe owner and they will say "wind is westerly, they just landed on 27" which actually means that half an hour ago one aircraft that was practicing crosswind landings landed on that runway, even though the wind is northerly. But it gives you an idea. Then make calls like you would on UK Air-Ground frequencies (although a lot of pilots seem to use them as ATC these days!!!). Most important thing - always use the airfield name at start and end of your transmission because there are often other airports using the same frequency.
Don't be afraid to talk on the radio and ask stuff. And if they give you a heading, they want you on it now, not after you've had a think about it, looked at a map, etc.
Everything is done on QNH. Very sensible. You will need to know the height of the airfield though, because this is what your altimeter will read when you land. Don't forget, could be embarrassing.
No-one uses the "November" prefix in the radio call.
Airfield ops: busy airfields: need to get the ATIS first, then often have Clearance Delivery first, then Ground, then Tower, then departure..
Normally after landing you just get off the runway onto a taxiway and tower tells you to contact ground - you musn't move further until you have.
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This is the same as any other big airfield in Europe and if you have a JAA RT licence then you should know this procedure already....